Mechanical equipment of buildings; a reference book for engineers and architects (1916)
Harding, Louis Allen, Willard, Arthur C. (Arthur Cutts), 1878-1960 · New York Wiley · leaf 211
Fig. 17. Belted Co.mpre.ssor. … TOP VIEW Fig. 18. Electric V.^crrM Pu.mp.s, axd Coxxectioxs.The above illustration .shows method of cross-connrctina; two • Reliable Electric Vacuum Pumpsfor u.se with heating systems having a larger amount of radiation than one pump can handle. Duplexinstallations are also used where a reserve…
Building · Heating · Ventilation
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